Forget about the Internet scale, seriously that is not enough for Google. Google engineers are now talking about future scale which means company is preparing to manage as many as 10 million servers in the future. Google fellow Jeff Dean describes Google's Future scale as,

~10⁶ to 10⁷ machines, ~10¹³ directories,~10¹⁸ bytes of storage, spread at 100s to 1000s of locations around the world, ~10⁹ client machines

Woo! Jeff don't stop here, he further presents Google's MapReduce usage statistics over time, check out the incredible numbers of input data read (500+ petabyte) .